Portions of Video Pixelated in iMovie
If the pixels only occur after you import your video into iMovie and not in the rendered file on your computer, then it is probably an issue within iMovie rather than with Blender. You can try exporting the scene as PNGs which you can then string together at 24 per second if you are looking for a different format to use. If the rendered scene looks okay when you play it back on your computer, but pixelated upon import to your iPad, no changes in Blender are likely to fix that. Try asking this question in the &quot;Video Production&quot; or &quot;Apple&quot; stack exchanges and they may be able to help better than we can.